Each person has a different metabilism and diet
Answer:
She could do some resaerch on the community. She could use the internet to find out if there are any community centers that she could go to where there would be different activitys.
Answer: I believe that it is not safe because if you were to say crush it up and snort it and you thought that is wasn't working so you did another and then maybe another then you might be taking more then what you where supposed to take in one setting.
Hope it makes since.